most citedParameter estimation in diagonalizable bilinear stochastic parabolic equations

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math.SP2008

Absence of eigenvalues for integro-differential operators with periodic coefficients

Marius Marinel Stanescu, Igor Cialenco

Applying perturbation theory methods, the absence of the point spectrum for some nonselfadjoint integro-differential operators is investigated. The considered differential operator…

math.SP2007

On the point spectrum of some perturbed differential operators with periodic coefficients

Igor Cialenco

Finiteness of the point spectrum of linear operators acting in a Banach space is investigated from point of view of perturbation theory. In the first part of the paper we present a…